Global systems

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Across
  1. 2. The emission of energy is called?
  2. 3. Some of the energy from the sun is absorbed by what part of the biosphere?
  3. 4. A layer of soil that remains frozen throughout the year is called a?
  4. 5. What effect allows solar radiation to pass through?
  5. 8. What source of energy is not depleted by water, wind or solar power?
  6. 9. what is the name for organisms interacting?
  7. 11. The air is made up of 78% of _______
  8. 13. A natural fuel is called a ...
  9. 14. A mix of two elements that is found in the Earth's atmosphere
  10. 17. Fuels that are derived directly from living matter.
  11. 18. NiƱo what is the name of a warm ocean current that flows along the equator?
  12. 20. What word refers to the flow of the ocean current caused by the density of the water?
  13. 22. An electromagnetic radiation that is greater than the red end of the visible light spectrum
  14. 23. A natural cycle that is essential and soaks up CO2
  15. 25. A radio signal that is lower in frequency is called?
  16. 26. The land part of the biosphere is called ...
Down
  1. 1. The name for the environment which holds water
  2. 4. how do plants convert sunlight into energy?
  3. 6. What is the word for when water form little droplets on a cold surface when surrounded in a humid atmosphere?
  4. 7. The sum of all environments in Earth.
  5. 10. A gas produced by cows.
  6. 12. What word is used in the water cycle when the water is absorbed by the sun?
  7. 15. What is the name for clearing forests?
  8. 16. The name of the period between the two mild climates
  9. 19. The word used to describe extreme weather conditions
  10. 21. The product of something is called a ...
  11. 22. A permanent piece of ice covering masses of earth is called an ...
  12. 24. What word is used when stating the atmosphere?